Electrocrystallization of Pt layers onto Au substrates; an X-ray diffraction study

机译：Pt层在Au衬底上的电结晶； X射线衍射研究

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An X-ray diffraction study of the structural features of Pt electrodeposited on Au substrates was performed. The influence of the deposition potential, electrochemical ageing and model catalytic reactions on the structural characteristics of deposits has been analysed. It has been shown that under the conditions employed highly defective electrolytic deposits are formed composed of nm-sized particles (10-30 nm). Electrochemical ageing and model electrochemical reactions lead to the relaxation of the defect structure of electrodeposited Pt, which is expressed in an increase of lattice parameter and particle size and decrease in the values of strains and density of randomly distributed dislocations. The data obtained showed that the deposition potential is a key parameter determining structural characteristics of Pt electrolytic deposits, and allowed to reveal the minimum of intergrowth degree of Pt nano-particles.

机译：对电沉积在金基体上的铂的结构特征进行了X射线衍射研究。分析了沉积电位，电化学时效和模型催化反应对沉积物结构特征的影响。已经表明，在所采用的条件下，由纳米尺寸的颗粒（10-30nm）组成的高缺陷电解沉积物形成。电化学老化和模型电化学反应导致电沉积Pt缺陷结构的松弛，这表现为晶格参数和粒径的增加以及应变值和随机分布的位错密度的降低。获得的数据表明，沉积电位是决定Pt电解沉积物结构特征的关键参数，并且可以揭示Pt纳米粒子的共生度最小。

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来源
《Zeitschrift fur Kristallographie Supplement Issue no.23 2006: International Journal for Structural, Physical, and Chemical Aspects of Crystalline Materials》|2004年|P.293-298|共6页
会议地点 Prague(CS)
作者
I. Yu. Molina; L. M. Plyasova; S. V. Cherepanova; E. R. Savinova; G. A. Tsirlina;
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作者单位

Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia;

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会议组织
原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
nano-particles; structure; electrolytic deposits; deposition potential;

机译：纳米粒子;结构;电解沉积;沉积势;

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Electrocrystallization of Pt layers onto Au substrates; an X-ray diffraction study

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